Finding the Fourth Proportional to 418,067.68, 629,890.65 and 378,132.75
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Solution
The fourth proportional to 418,067.68, 629,890.65 and 378,132.75 is: 569,721.83
Step by Step Solution
- Step 1: Write the proportion equation
418,067.68 : 629,890.65 = 378,132.75 : x - Step 2: Convert to fraction form
418,067.68/629,890.65 = 378,132.75/x - Step 3: Cross multiply
418,067.68x = 629,890.65 × 378,132.75 - Step 4: Simplify right side
418,067.68x = 238,182,281,793.12 - Step 5: Solve for x
x = 238,182,281,793.12/418,067.68 - Step 6: Final answer
x = 569,721.83
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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.